Worried about Chemistry-related questions

So I'm currently studying for the teas and im not gonna lie, I'm not doing too well. Luckily I haven't scheduled the exam or anything yet but I've been taking practice test after practice test (specifically for Math & Science; Math is my weakest subject) and I haven't done well at all. Im most worried about Chemistry because I keep getting those questions when taking the science test and I've only taken biology courses, so even the most basic Chem questions are leaving me confused.

I was really hoping to be able to take the test and score very well before Spring semester starts (one less thing to study for) but I'm honestly not confident at all rn... If anyone has any tips for studying Chemistry, or if you've taken it and can give some pointers that would be super helpful!